CN111018575A - Kitchen waste fermentable treatment device and treatment method - Google Patents

Kitchen waste fermentable treatment device and treatment method Download PDF

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Publication number
CN111018575A
CN111018575A CN201911399499.7A CN201911399499A CN111018575A CN 111018575 A CN111018575 A CN 111018575A CN 201911399499 A CN201911399499 A CN 201911399499A CN 111018575 A CN111018575 A CN 111018575A
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fermentation
fermentation cylinder
kitchen waste
tank
impeller
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王磊
赵静
徐树明
孙涛
刘振桐
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Tianjin Zhongke Environmental Technology Development Co Ltd
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Tianjin Zhongke Environmental Technology Development Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F9/00—Fertilisers from household or town refuse
    • C05F9/02—Apparatus for the manufacture
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K10/00—Animal feeding-stuffs
    • A23K10/10—Animal feeding-stuffs obtained by microbiological or biochemical processes
    • A23K10/12—Animal feeding-stuffs obtained by microbiological or biochemical processes by fermentation of natural products, e.g. of vegetable material, animal waste material or biomass
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K10/00—Animal feeding-stuffs
    • A23K10/20—Animal feeding-stuffs from material of animal origin
    • A23K10/26—Animal feeding-stuffs from material of animal origin from waste material, e.g. feathers, bones or skin
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K10/00—Animal feeding-stuffs
    • A23K10/30—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms
    • A23K10/37—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms from waste material
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K20/00—Accessory food factors for animal feeding-stuffs
    • A23K20/20—Inorganic substances, e.g. oligoelements
    • A23K20/28—Silicates, e.g. perlites, zeolites or bentonites
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L5/00—Preparation or treatment of foods or foodstuffs, in general; Food or foodstuffs obtained thereby; Materials therefor
    • A23L5/20—Removal of unwanted matter, e.g. deodorisation or detoxification
    • A23L5/21—Removal of unwanted matter, e.g. deodorisation or detoxification by heating without chemical treatment, e.g. steam treatment, cooking
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23N—MACHINES OR APPARATUS FOR TREATING HARVESTED FRUIT, VEGETABLES OR FLOWER BULBS IN BULK, NOT OTHERWISE PROVIDED FOR; PEELING VEGETABLES OR FRUIT IN BULK; APPARATUS FOR PREPARING ANIMAL FEEDING- STUFFS
    • A23N17/00—Apparatus specially adapted for preparing animal feeding-stuffs
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F9/00—Fertilisers from household or town refuse
    • C05F9/04—Biological compost
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M21/00—Bioreactors or fermenters specially adapted for specific uses
    • C12M21/04—Bioreactors or fermenters specially adapted for specific uses for producing gas, e.g. biogas
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M27/00—Means for mixing, agitating or circulating fluids in the vessel
    • C12M27/02—Stirrer or mobile mixing elements
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M37/00—Means for sterilizing, maintaining sterile conditions or avoiding chemical or biological contamination
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
    • C12P5/00—Preparation of hydrocarbons or halogenated hydrocarbons
    • C12P5/02—Preparation of hydrocarbons or halogenated hydrocarbons acyclic
    • C12P5/023—Methane
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
    • Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
    • Y02P60/87—Re-use of by-products of food processing for fodder production

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Abstract

The invention relates to the technical field of garbage treatment, and discloses a kitchen waste fermentable treatment device which comprises a fermentation tank, a feeding machine, a temperature and PH value detector, a one-way valve, a methane storage device and a deodorization device. Utilize the marsh gas that the fermentation of kitchen garbage produced to store up the back in the fermentation cylinder and rise, it promotes to rotate the impeller, and then pass through transmission with power and transmit impeller for stirring impeller, make stirring impeller stir kitchen garbage with certain speed in the fermentation cylinder, improve its homogeneity that paves and be heated in the fermentation cylinder, accelerate giving off the rate of rise of marsh gas simultaneously, and then accelerate the collection rate of marsh gas, improve the decomposition rate of kitchen garbage, hot water among the retort of disinfecting accesss to the fermentation cylinder, heat the fermentation cylinder and keep best reaction temperature, further improve decomposition rate, shorten the decomposition time, and then increase the efficiency to kitchen garbage disposal, and improve the utilization ratio to marsh gas, reduce the consumption of external energy, reduce the cost of refuse disposal.

Description

Kitchen waste fermentable treatment device and treatment method
Technical Field
The invention relates to the technical field of garbage treatment, in particular to a device and a method for treating kitchen garbage by fermentation.
Background
Kitchen waste refers to kitchen waste generated by residents in the processes of daily life, food processing, food service, unit catering and the like, the kitchen waste comprises abandoned vegetable leaves, leftovers, fruit peels, egg shells, packaging materials and the like, the kitchen waste is easy to ferment, deteriorate and rot, not only generates a large amount of toxins and gives off odor, but also pollutes water and atmosphere when being accumulated on the ground surface and further generates harmful bacteria, so that untimely processing of the kitchen waste affects city appearance and environmental sanitation of a city, diseases can be spread and diseases are harmful to daily life and physical health of human beings, the kitchen waste contains a large amount of biomass energy, the kitchen waste can be recycled and harmlessly processed, the kitchen waste needs to be fermented in the processing process of the kitchen waste, the kitchen waste is decomposed, and a fermentation tank is commonly used for fermenting the kitchen waste at present, however, the using process has some defects as follows:
generally, in order to accelerate the fermentation speed of kitchen waste, the kitchen waste in the fermentation tank needs to be stirred, and the stirring device needs to be driven by an additional motor, so that the energy consumption is increased, the treatment cost is increased, meanwhile, the fermentation tank is heated by utilizing the methane generated in the fermentation tank, although the consumption of other energy sources is reduced to a certain degree, the utilization of the combustion energy of the methane is insufficient, and the utilization rate of the methane is low.
Disclosure of Invention
The invention provides a kitchen waste fermentation treatment device and a treatment method, which have the advantages of high fermentation speed and low energy consumption and solve the problems in the background art.
The invention provides the following technical scheme: a kitchen garbage fermentation treatment device comprises a fermentation tank, a feeder, a temperature detector, a PH value detector, a one-way valve, a methane storage device and a deodorization device, wherein the temperature detector and the PH value detector are fixedly arranged at the middle part on the right side of the fermentation tank, the right end of the temperature detector and the PH value detector extend into the fermentation tank, the fermentation tank is a double-layer sleeve tank, the double-layer sleeve tank forms a closed hollow layer I, the left side of the top of the fermentation tank is fixedly communicated with an air outlet pipeline, the right side of the top of the fermentation tank is fixedly provided with a feed inlet, the inside of the air outlet pipeline is movably provided with a rotating impeller, a transmission device is fixedly arranged at the center of the top of the fermentation tank, the bottom of the transmission device extends into the fermentation tank and is fixedly provided with a stirring impeller, the bottom of the fermentation tank is fixedly provided with a discharging machine, the jar that disinfects comprises double-deck cover jar, and double-deck cover jar forms hollow layer two, the left bottom of fermentation cylinder just is located the top fixedly connected with water service pipe of row material machine, hollow layer one is through water service pipe and hollow layer two intercommunication, the bottom fixed mounting of jar that disinfects has annular marsh gas kitchen, give vent to anger respectively fixedly connected with air duct between pipeline and marsh gas storage device, marsh gas storage device and the annular marsh gas kitchen, and all install the check valve on two air ducts.
Preferably, the observation window has been seted up respectively with the back of jar of disinfecting to the fermentation cylinder, the right side top fixedly connected with outlet pipe of fermentation cylinder, and fixed mounting has the governing valve on the outlet pipe, the left bottom fixedly connected with inlet tube of jar of disinfecting, and fixed mounting has the governing valve on the inlet tube, fixed mounting has heat-resisting stop valve on the water service pipe.
Preferably, the bottom of the sterilization tank is fixedly connected with a conveying device, and the right end of the conveying device is fixedly connected with a deodorization device.
Preferably, the feeding machine and the discharging machine are respectively a vertically-installed spiral conveyor and a parallel-installed spiral conveyor.
Preferably, the pipeline of giving vent to anger is the cuboid pipeline, it includes blade and horizontal rotating shaft to rotate the impeller, the fixed left part that connects at horizontal rotating shaft of blade cover, the right-hand member of horizontal rotating shaft run through the pipeline of giving vent to anger and with transmission swing joint, the blade bottom surface area of blade is the same with the sectional area of the pipeline of giving vent to anger, transmission includes transmission case, worm and perpendicular pivot, the fixed right-hand member that cup joints at horizontal rotating shaft of worm, the top of perpendicular pivot and the top swing joint of transmission case, the bottom of perpendicular pivot is located the inside of fermentation cylinder and with impeller fixed connection, the top fixed mounting of perpendicular pivot has the turbine, and turbine and worm meshing.
A kitchen waste treatment method comprises the following specific steps:
s1: crushing and squeezing the kitchen waste, adding bentonite and anaerobic bacteria, and mixing and stirring;
s2: conveying the mixed and stirred kitchen waste into a fermentation tank, wherein the fermentation tank is anaerobic, the temperature and the pH value are kept within a certain range, fermenting for a certain time to generate biogas, the biogas rises and is discharged from a gas outlet pipeline, the rotating impeller is pushed during discharging, the kitchen waste is stirred by the stirring impeller in the fermentation tank through the transmission of a transmission device, the biogas is stored in a biogas storage device after being discharged, and the residue left after fermentation is transmitted into a sterilization tank through a discharging machine;
s3: after the residues enter the sterilization tank, biogas in the biogas storage device is led into the annular biogas stove to be ignited, water in the sterilization tank is heated to a certain temperature to sterilize the residues, the heated water in the sterilization tank can be led into the fermentation tank to heat and preserve heat of the fermentation tank.
S4: the sterilized residue is deodorized and can be used as feed or fertilizer.
Preferably, the anaerobic bacteria comprise methane bacteria, cellulose decomposition bacteria, fat decomposition bacteria, protein decomposition bacteria, acid-producing bacteria and bacillus, and the ratio of the addition amount of bentonite to the total solid mass TS in the kitchen garbage is 1: 10.
preferably, the required temperature in the fermentation tank is 50-60 ℃, and the temperature in the sterilization tank is 70-80 ℃.
The invention has the following beneficial effects:
through the arrangement of the rotating impeller, the transmission device and the stirring impeller, biogas generated by fermentation of kitchen waste is accumulated in the fermentation tank and then rises, the rotating impeller is pushed, further power is transmitted to the stirring impeller through the transmission device, the stirring impeller is used for stirring the kitchen waste in the fermentation tank at a certain speed, the uniformity of the kitchen waste in the fermentation tank is improved, the spreading and heating uniformity of the kitchen waste is improved, the spreading and heating rate of the biogas is increased, the biogas collection rate is increased, the decomposition rate of the kitchen waste is improved, meanwhile, through the arrangement of the fermentation tank and the sterilization tank, hot water in the sterilization tank is led to the fermentation tank, the fermentation tank is heated, the optimal reaction temperature is kept, the decomposition rate is further improved, the decomposition time is shortened, the kitchen waste treatment efficiency is improved, the utilization rate of the biogas is improved, and the consumption of external energy is reduced, the cost of garbage disposal is reduced.
Drawings
FIG. 1 is a schematic front view of the structure of the present invention;
FIG. 2 is a schematic view of a process flow of the present invention;
FIG. 3 is a schematic view of the present invention at B-B in FIG. 1;
FIG. 4 is an enlarged view of the point A in FIG. 1.
In the figure: 1. a fermentation tank; 2. a feed inlet; 3. a feeding machine; 4. an air outlet pipe; 5. rotating the impeller; 51. a blade; 52. a horizontal rotating shaft; 6. a transmission device; 61. a transmission case; 62. a worm; 63. a vertical rotating shaft; 64. a turbine; 7. a stirring impeller; 8. a temperature and PH value detector; 9. a discharging machine; 10. a one-way valve; 11. a biogas storage device; 12. a water pipe; 13. a heat-resistant stop valve; 14. sterilizing the tank; 15. an annular methane stove; 16. a deodorizing device; 17. a conveying device.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, a kitchen waste fermentation treatment device comprises a fermentation tank 1, a feeding machine 3, a temperature and PH value detector 8, a one-way valve 10, a methane storage device 11 and a deodorization device 16, wherein the temperature and PH value detector 8 is fixedly installed in the middle of the right side of the fermentation tank 1, the right end of the temperature and PH value detector 8 extends into the fermentation tank 1, the fermentation tank 1 is a double-layer sleeve tank, the double-layer sleeve tank forms a sealed hollow layer one, the left side of the top of the fermentation tank 1 is fixedly communicated with an air outlet pipeline 4, the right side of the top of the fermentation tank 1 is fixedly provided with a feeding port 2, the inside of the air outlet pipeline 4 is movably provided with a rotating impeller 5, the center of the top of the fermentation tank 1 is fixedly provided with a transmission device 6, the bottom end of the transmission device 6 extends into the fermentation tank 1 and is fixedly sleeved with a stirring impeller, left end fixedly connected with sterilization tank 14 of row material machine 9, sterilization tank 14 comprises double-deck cover jar, and double-deck cover jar forms hollow layer two, fermentation cylinder 1 left bottom and be located row material machine 9's top fixedly connected with water service pipe 12, hollow layer one is through water service pipe 12 and hollow layer two intercommunication, sterilization tank 14's bottom fixed mounting has annular marsh gas kitchen 15, outlet duct 4 and marsh gas storage device 11, be fixedly connected with air duct between marsh gas storage device 11 and the annular marsh gas kitchen 15 respectively, and all install check valve 10 on two air ducts.
Wherein, the observation window has been seted up respectively with sterilization tank 14's the back to fermentation cylinder 1, can carry out the naked eye observation to both inside reactions, be convenient for understand its inside production process, fermentation cylinder 1's right side top fixedly connected with outlet pipe, and fixed mounting has the governing valve on the outlet pipe, 14 left bottom fixedly connected with inlet tubes sterilize, and fixed mounting has the governing valve on the inlet tube, can realize the circulation of fermentation cylinder 1 and sterilization tank 14 normal water, and then regulate and control the reaction temperature in both inner chambers, fixed mounting has heat-resisting stop valve 13 on water service pipe 12, when the reaction temperature in fermentation cylinder 1 is too high, cut the rivers of circulation or the velocity of flow that reduces in the water service pipe 12, ensure that the reaction temperature in the fermentation cylinder 1 is best reaction temperature.
Wherein, the bottom fixedly connected with conveyor 17 of jar 14 disinfects, and conveyor 17's right-hand member fixedly connected with deodorizing device 16 will disinfect the kitchen garbage and transmit deodorization in deodorizing device 16, and then form fodder or fertilizer, improve the utilization ratio of kitchen garbage.
The feeding machine 3 and the discharging machine 9 are respectively a vertically-installed spiral conveyor and a parallel-installed spiral conveyor, and methane leakage can be effectively prevented due to good air tightness of the spiral conveyors.
Wherein, the gas outlet pipe 4 is a cuboid pipe, the rotating impeller 5 comprises a blade 51 and a horizontal rotating shaft 52, the blade 51 is fixedly sleeved at the left part of the horizontal rotating shaft 52, the right end of the horizontal rotating shaft 52 penetrates through the gas outlet pipe 4 and is movably connected with the transmission device 6, the surface area of the bottom surface of the blade 51 is the same as the sectional area of the gas outlet pipe 4, the transmission device 6 comprises a transmission box 61, a worm 62 and a vertical rotating shaft 63, the worm 62 is fixedly sleeved at the right end of the horizontal rotating shaft 52, the top end of the vertical rotating shaft 63 is movably connected with the top of the transmission box 61, the bottom end of the vertical rotating shaft 63 is positioned inside the fermentation tank 1 and is fixedly connected with the stirring impeller 7, the top of the vertical rotating shaft 63 is fixedly provided with a turbine 64, the turbine 64 is meshed with the worm 62, the worm 62 is driven to rotate by the rotation of, the stirring impeller 7 can rotate at a certain speed in the fermentation tank 1 to stir the kitchen waste.
A kitchen waste treatment method comprises the following specific steps:
s1: crushing and squeezing the kitchen waste, adding bentonite and anaerobic bacteria, and mixing and stirring;
s2: the mixed and stirred kitchen waste is conveyed into a fermentation tank 1, the fermentation tank 1 is anaerobic, the temperature and the pH value are kept within a certain range, after fermentation for a certain time, methane is generated, the methane rises and is discharged from an air outlet pipeline 4, a rotary impeller 5 is pushed when the methane is discharged, then the kitchen waste is stirred by a stirring impeller 7 in the fermentation tank 1 through the transmission of a transmission device 6, the methane is stored in a methane storage device 11 after being discharged, and the residual residue after fermentation is conveyed into a sterilization tank 14 through a discharge machine 9;
s3: after the residues enter the sterilization tank 14, biogas in the biogas storage device 11 is led into the annular biogas stove 15 to be ignited, water in the sterilization tank 14 is heated to a certain temperature to sterilize the residues, the heated water in the sterilization tank 14 can be led into the fermentation tank 1 to heat and preserve heat of the fermentation tank 1.
S4: the sterilized residue is deodorized and can be used as feed or fertilizer.
Wherein, the anaerobic bacteria comprise methane bacteria, cellulose decomposition bacteria, fat decomposition bacteria, protein decomposition bacteria, acid-producing bacteria and bacillus, the ratio of the addition amount of bentonite to the total solid mass of TS in the kitchen garbage is 1: 10, the bentonite adsorbs sodium ions in the kitchen garbage, so that the impact on methane bacteria is reduced, and simultaneously, a large amount of calcium ions and magnesium ions can be released, and the two ions can change the permeability of anaerobic microorganism cells, so that the microorganisms can selectively absorb nutrient components required by the microorganisms, and the activity of the anaerobic bacteria is improved.
Wherein the temperature required in the fermentation tank 1 is 50-60 ℃, and the temperature in the sterilization tank 14 is 70-80 ℃.
The working principle is that after the kitchen waste is pretreated, the kitchen waste is sent into the fermentation tank 1 from the feeding port 2 by the feeding machine 3 to be fermented, after a certain period of time, methane is generated and rises into the air outlet pipeline 4 to push the rotary impeller 5, the stirring impeller 7 is driven by the transmission device 6 to rotate at a certain speed to stir the kitchen waste, the methane continuously rises into the methane storage device 11 to be stored, after the fermentation is finished, the residual residues are transmitted to the sterilization tank 14 by the discharging machine 9 at the bottom of the fermentation tank 1 to be sterilized, the methane in the methane storage device 11 is led into the annular methane stove 15 to be ignited to heat the water in the sterilization tank 14 to 70-80 ℃ for sterilization, the heat-resistant stop valve 13 is opened to communicate the hollow layer one with the hollow layer two, so that the heat in the sterilization tank 14 enters the fermentation tank 1, the temperature in the fermentation tank 1 is increased, the heat-resistant stop valve 13 is closed after the temperature and the PH value detector 8 detect the appropriate temperature, and the heat transmission is interrupted.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The utility model provides a but kitchen garbage fermentation processing apparatus, includes fermentation cylinder (1), feeder (3), temperature, PH value detector (8), check valve (10), marsh gas storage device (11) and deodorizing device (16), temperature, PH value detector (8) fixed mounting are at the middle part on fermentation cylinder (1) right side, and the right-hand member of temperature, PH value detector (8) stretches into the inside of fermentation cylinder (1), its characterized in that: fermentation cylinder (1) is double-deck set jar, and double-deck set jar forms inclosed hollow layer one, the fixed intercommunication in left side at fermentation cylinder (1) top has pipeline (4) of giving vent to anger, the right side fixed mounting at fermentation cylinder (1) top has feed inlet (2), the inside movable mounting of pipeline (4) of giving vent to anger has impeller (5), the center department fixed mounting at fermentation cylinder (1) top has transmission (6), the bottom of transmission (6) stretches into the inside of fermentation cylinder (1) and fixed cover is equipped with impeller (7) on it, the bottom fixed mounting of fermentation cylinder (1) has row's of material machine (9), the left end fixedly connected with sterilization tank (14) of row's of material machine (9), sterilization tank (14) comprise double-deck set jar, and double-deck set forms hollow layer two, the left bottom of fermentation cylinder (1) just is located the top fixedly connected with water service pipe (12) of row's of material machine (9), the first hollow layer is communicated with the second hollow layer through a water through pipe (12), an annular methane stove (15) is fixedly mounted at the bottom of the sterilization tank (14), air guide pipes are respectively and fixedly connected between the air outlet pipeline (4) and the methane storage device (11), between the methane storage device (11) and the annular methane stove (15), and one-way valves (10) are mounted on the two air guide pipes.
2. The fermentation treatment device for kitchen waste according to claim 1, characterized in that: the observation window has been seted up respectively with the back of jar (14) of disinfecting in fermentation cylinder (1), the right side top fixedly connected with outlet pipe of fermentation cylinder (1), and fixed mounting has the governing valve on the outlet pipe, the left bottom fixedly connected with inlet tube of jar (14) of disinfecting, and fixed mounting has the governing valve on the inlet tube, fixed mounting has heat-resisting stop valve (13) on water service pipe (12).
3. The fermentation treatment device for kitchen waste according to claim 1, characterized in that: the bottom of the sterilizing tank (14) is fixedly connected with a conveying device (17), and the right end of the conveying device (17) is fixedly connected with a deodorizing device (16).
4. The fermentation treatment device for kitchen waste according to claim 1, characterized in that: the feeding machine (3) and the discharging machine (9) are respectively a vertically-installed spiral conveyor and a parallel-installed spiral conveyor.
5. The fermentation treatment device for kitchen waste according to claim 1, characterized in that: the pipeline of giving vent to anger (4) is the cuboid pipeline, it includes blade (51) and horizontal pivot (52) to rotate impeller (5), fixed the cup jointing in the left part of horizontal pivot (52) blade (51), the right-hand member of horizontal pivot (52) runs through pipeline (4) of giving vent to anger and with transmission (6) swing joint, the blade bottom surface area of blade (51) is the same with the sectional area of pipeline (4) of giving vent to anger, transmission (6) are including transmission case (61), worm (62) and vertical rotating shaft (63), the fixed right-hand member of cup jointing in horizontal pivot (52) of worm (62), the top of vertical rotating shaft (63) and the top swing joint of transmission case (61), the bottom of vertical rotating shaft (63) is located the inside of fermentation cylinder (1) and with stirring impeller (7) fixed connection, the top fixed mounting of vertical rotating shaft (63) has turbine (64), and the worm wheel (64) meshes with the worm (62).
6. A method for treating kitchen garbage is characterized by comprising the following steps: the method comprises the following specific steps:
s1: crushing and squeezing the kitchen waste, adding bentonite and anaerobic bacteria, and mixing and stirring;
s2: the mixed and stirred kitchen waste is conveyed into a fermentation tank (1), the fermentation tank (1) is anaerobic, the temperature and the pH value are kept within a certain range, after fermentation for a certain time, biogas is generated, the biogas rises and is discharged from an air outlet pipeline (4), a rotary impeller (5) is pushed when the biogas is discharged, then the kitchen waste is stirred by a stirring impeller (7) in the fermentation tank (1) through the transmission of a transmission device (6), the biogas is discharged and is stored in a biogas storage device (11), and the residue left after fermentation is conveyed into a sterilization tank (14) through a discharge machine (9);
s3: after the residues enter a sterilization tank (14), biogas in a biogas storage device (11) is led into an annular biogas stove (15) to be ignited, water in the sterilization tank (14) is heated to a certain temperature to sterilize the residues, the heated water in the sterilization tank (14) can be led into a fermentation tank (1) to heat and preserve heat of the fermentation tank (1);
s4: the sterilized residue is deodorized and can be used as feed or fertilizer.
7. The method for treating kitchen waste according to claim 6, characterized in that: the anaerobic bacteria comprise methane bacteria, cellulose decomposition bacteria, fat decomposition bacteria, protein decomposition bacteria, acid-producing bacteria and bacillus, and the ratio of the addition amount of bentonite to TS (total solid mass) in the kitchen garbage is 1: 10.
8. the method for treating kitchen waste according to claim 6, characterized in that: the required temperature in the fermentation tank (1) is 50-60 ℃, and the temperature in the sterilization tank (14) is 70-80 ℃.
CN201911399499.7A 2019-12-30 2019-12-30 Kitchen waste fermentable treatment device and treatment method Pending CN111018575A (en)

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CN115921332A (en) * 2022-11-04 2023-04-07 福建中环宝科技集团有限公司 Equipment for capturing volatile CO2 in garbage

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Application publication date: 20200417